Sekundärbatterie

Details

Veröffentlichungs-Nr.

EP4807832

Anmeldetag

18. November 2025

Veröffentlichung

16. September 2026

Rechtsraum

EP

Abstract

A secondary battery includes a can having a substantially cylindrical geometry, the can including an open end and a closed end; an electrode assembly accommodated within the can; and a cap assembly including a vent plate and a gasket, the vent plate disposed on the open end facing the electrode assembly, the gasket including an insulating material and disposed between the vent plate and the can, wherein a partial area of the open end has a thickness greater than a thickness of a remaining area. The secondary battery having a certain target crimping force may have a thickness of a crimping portion, except for a beading portion, being adjusted. If the thickness of the crimping portion is reduced, crimping may be released at a low pressure, resulting in quick opening and gas release.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea